`d):`
`-2/3 : x + 5/8 = -7/12`
`⇔ 24(-2/3) + 24x × (5/8) = -14x`
`⇔ (-48)/3 + 24x × (5/8) = -14x`
`⇔ -16 + 24x × (5/8) = -14x`
`⇔ -16 + (24 × 5)/8x = -14x`
`⇔ -16 + 120/8x = -14x`
`⇔ −16+15x=−14x`
`⇔ −16+15x+14x=0`
`⇔ −16+29x=0`
`⇒ 29x=16`
`x = 16/29`
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